Home / 13,338.47-18,407.05-8,033.58

Finding the Fourth Proportional to 13,338.47, 18,407.05 and 8,033.58

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Solution

The fourth proportional to 13,338.47, 18,407.05 and 8,033.58 is: 11,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.47 : 18,407.05 = 8,033.58 : x
  2. Step 2: Convert to fraction form
    13,338.47/18,407.05 = 8,033.58/x
  3. Step 3: Cross multiply
    13,338.47x = 18,407.05 × 8,033.58
  4. Step 4: Simplify right side
    13,338.47x = 147,874,488.66
  5. Step 5: Solve for x
    x = 147,874,488.66/13,338.47
  6. Step 6: Final answer
    x = 11,086.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.